不過俺不是學數學的。
偏微分方程概念不算難了。
不過俺不是學數學的。
偏微分方程概念不算難了。
• 記得小學三,四年級時學四則運算題,有同學喜歡吹牛他算的題有多複雜, -黃瓜- ♂ (287 bytes) () 04/13/2011 postreply 19:11:21
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